Sensorless Control of Switched Reluctance Machines Based on Adaptive Sliding Mode Observer

被引:0
|
作者
Ge, Lefei [1 ]
Huang, Jiale [1 ]
Zhang, Dongpeng [1 ]
Song, Shoujun [1 ]
机构
[1] Northwestern Polytech Univ, Sch Automat, Xian 710072, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
SRM; adaptive control; sliding mode observer; POSITION ESTIMATION;
D O I
10.1109/ICEMS56177.2022.9983101
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
To realize sensorless control of switched reluctance machine (SRM), a sensorless control method of SRM based on adaptive sliding mode observer is presented. First, the magnetic chain of the motor is collected, the estimated current is obtained by looking up the table, then the error function is constructed to simplify the sliding surface, and the observed values of the speed and the position of the rotator are obtained. Finally, the adaptive rate of the motor speed and the rotor position is set according to the SRM state equation to reduce the error between the predicted value and the actual value of the sliding mode observer. The performance of the proposed adaptive sliding mode observer is verified by simulation. This method can modify its characteristics to suit the changes of object and disturbance dynamic characteristics. Compared with traditional sliding mode observers, the adaptive sliding mode observer can reduce the jitter caused by irregular switching characteristics and improve the accuracy of predicting the position of the rotor.
引用
收藏
页数:5
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